AI-generatedBonn at a glance
- Best time
- May – Sep
- Warmest month
- Aug · 23°
- Sunshine a year
- 1,590 h
- Rain a year
- 797 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 64 m
Climate in Bonn
Bonn has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 23 °C, while January is the coolest at 5 °C. With around 1,590 hours of sunshine a year, Bonn is rather dull; June is the sunniest month with 6.7 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: May – September
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 14°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 12°
- Night, 23:00: about 11°
07:5318:42
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:32–08:38 · evening 17:57–19:02
- Blue hour
- Morning 07:19–07:32 · evening 19:02–19:15
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Bonn in October?
In October, Bonn is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 12 rainy days and 72 mm in total. All in all, October is a so-so month for a holiday in Bonn.
More details for October
- Daylight
- 10 h 49 min07:53 – 18:42
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Berlin
How the score comes together
- Temperatureweight 50 %67 %
- Sunshineweight 20 %7 %
- Few rainy daysweight 30 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Sunshine hours in Bonn
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 3.4 of 10.8 hours of daylight in Bonn, 31 % of the day.
Sunshine hours: measured at the weather station 15 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Bonn
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 2 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 8).
Minutes until sunburn in October
- Very fair skin
- about 65 min
- Fair skin
- about 80 min
- Light brown skin
- about 115 min
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Bonn: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Bonn has about 12 rainy days with 72 mm of rain in total.
Wind and clouds in Bonn
How breezy and how cloudy Bonn is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Bonn typically peaks at 18 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Bonn: mostly cloudy, with about 3.4 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Bonn
How often the day gets hot in Bonn (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Bonn has about 0 hot days, with an average daytime high of 15 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Bonn
Snow is possible in Bonn, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Bonn.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Bonn
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
CoolOctober: nights around 9°. A duvet at night and a jumper for the evening.
The coolest nights are in January (1°), the warmest in August (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from November to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 9 | 5° | 1° | 1.8 h | 14 | 71 |
| FebruaryFeb | 12 | 7° | 1° | 2.6 h | 12 | 64 |
| MarchMar | 27 | 10° | 2° | 4.0 h | 12 | 59 |
| AprilApr | 58 | 14° | 5° | 5.8 h | 10 | 48 |
| MayMay | 75 | 18° | 9° | 6.4 h | 12 | 61 |
| JuneJun | 77 | 22° | 13° | 6.7 h | 11 | 64 |
| JulyJul | 73 | 23° | 15° | 6.7 h | 13 | 76 |
| AugustAug | 74 | 23° | 15° | 6.3 h | 12 | 73 |
| SeptemberSep | 73 | 19° | 12° | 5.0 h | 10 | 61 |
| OctoberOct | 47 | 15° | 9° | 3.4 h | 12 | 72 |
| NovemberNov | 17 | 9° | 5° | 2.0 h | 13 | 71 |
| DecemberDec | 7 | 6° | 2° | 1.5 h | 15 | 77 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
50.73° N, 7.10° E · 64 m · Europe/Berlin
Best time to visit Bonn
The best time to visit Bonn is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable from May to June and from August to September. Rain is most frequent in July and from October to March; the wettest month is December with 77 mm.
Bonn through the seasons
How the weather changes over the seasons, with averages for each.
Bonn in spring
Mar – May
Fair
- 10–18 °C by day
- 5 h of sun a day
- 34 rainy days in all
Bonn in summer
Jun – Aug
Good
- 22–23 °C by day
- 7 h of sun a day
- 36 rainy days in all
Bonn in autumn
Sep – Nov
Fair
- 9–19 °C by day
- 4 h of sun a day
- 36 rainy days in all
Bonn in winter
Dec – Feb
Poor
- 5–7 °C by day
- 2 h of sun a day
- 41 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Bonn for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Compare two months in Bonn
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Bonn: score 77 against 47. In June, days are 7 °C warmer than in October. June has one rainy day fewer. The sun shines 3 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 47 | 77better |
| Day high | 15° | 22° |
| Night low | 9° | 13° |
| Sunshine | 3.4 h | 6.7 hbetter |
| Rainy days | 12 | 11better |
| Rainfall | 72 mm | 64 mm |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Jun, Aug – Sep
15–28 °C and not too much rain
Rainy months
Jul, Oct – Mar
12 or more rainy days
Bonn month by month
The typical weather for every month at a glance.
9January5° · 2 h
In January, Bonn is cold: daytime highs average 5 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 14 rainy days and 71 mm in total. Snow falls on about 2 days. All in all, January is not an ideal month for a holiday in Bonn.
Bonn in January12February7° · 3 h
In February, Bonn is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 12 rainy days and 64 mm in total. Snow falls on about 2 days. All in all, February is not an ideal month for a holiday in Bonn.
Bonn in February27March10° · 4 h
In March, Bonn is cool: daytime highs average 10 °C, and nights cool down to about 2 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 59 mm in total. All in all, March is not an ideal month for a holiday in Bonn.
Bonn in March58April14° · 6 h
In April, Bonn is cool: daytime highs average 14 °C, and nights cool down to about 5 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 48 mm in total. All in all, April is a so-so month for a holiday in Bonn.
Bonn in April75May18° · 6 h
In May, Bonn is mild: daytime highs average 18 °C, and nights cool down to about 9 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 61 mm in total. All in all, May is a good month for a holiday in Bonn.
Bonn in May77June22° · 7 h
In June, Bonn is warm: daytime highs average 22 °C, and nights cool down to about 13 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 64 mm in total. All in all, June is a good month for a holiday in Bonn.
Bonn in June73July23° · 7 h
In July, Bonn is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 76 mm in total. All in all, July is a good month for a holiday in Bonn.
Bonn in July74August23° · 6 h
In August, Bonn is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 73 mm in total. All in all, August is a good month for a holiday in Bonn.
Bonn in August73September19° · 5 h
In September, Bonn is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 61 mm in total. All in all, September is a good month for a holiday in Bonn.
Bonn in September47October15° · 3 h
In October, Bonn is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 12 rainy days and 72 mm in total. All in all, October is a so-so month for a holiday in Bonn.
Bonn in October17November9° · 2 h
In November, Bonn is cold: daytime highs average 9 °C, and nights cool down to about 5 °C. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 13 rainy days and 71 mm in total. All in all, November is not an ideal month for a holiday in Bonn.
Bonn in November7December6° · 2 h
In December, Bonn is cold: daytime highs average 6 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2 hours a day. It rains often – on about 15 days, adding up to 77 mm. Snow falls on about 2 days. All in all, December is not an ideal month for a holiday in Bonn.
Bonn in DecemberBonn compared
Put Bonn side by side with another destination.
No destination found
Bonn vs. Cologne
In October the holiday weather in Bonn and Cologne is about equally good (score 47 vs. 47). During the day it is about as warm in Cologne as in Bonn.
| in October | Bonn | Cologne |
|---|---|---|
| Holiday score | 47 | 47 |
| Daytime high | 15° | 15° |
| Sunshine | 3 h | 3 h |
| Rainy days | 12 | 12 |
| Best time | May – Sep | May – Sep |
Through the year
Germany in October: the best places
In October, Bonn ranks 11 among the 31 nearest destinations in this country.
- Karlsruhe16°55
- 2Worms15°53
- 3Mannheim15°53
- 4Heidelberg15°53
- 5Wiesbaden15°50
- 6Mainz15°50
- 7Darmstadt15°50
- 8Frankfurt15°49
- 11BonnThis page15°47
Planning a trip to Bonn
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Bonn in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Bonn has its best school-holiday weather during May half-term (score 75) and its weakest during the Christmas holidays (score 8).
- 49
Easter holidays
Mar – Apr
Fair
- 13 °C by day
- 5.3 h of sun a day
- 11 rainy days a month
Keep in mind: Frequent rain
- 75
May half-term
May – Jun
GoodBest holidays
- 19 °C by day
- 6.5 h of sun a day
- 12 rainy days a month
Good for: Sightseeing & walks
- 74
Summer holidays
Jul – Aug
Good
- 23 °C by day
- 6.4 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 47
October half-term
Oct
Fair
- 15 °C by day
- 3.4 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 8
Christmas holidays
Dec – Jan
Poor
- 6 °C by day
- 1.7 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 10 min
- Distance
- 530 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Bonn
When is the best time to visit Bonn?
The best time to visit Bonn is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Bonn?
August is the warmest month, with average highs of 23 °C and nights around 15 °C. January is the coolest month at 5 °C.
When does it rain most in Bonn?
Rain is most frequent in July and from October to March; the wettest month is December with 77 mm. The driest month is April with 48 mm.
How many hours of sunshine does Bonn get?
Bonn gets around 1,590 hours of sunshine a year. The sunniest month is June with 6.7 hours a day; in December there are 1.5 hours a day.
What time zone is Bonn in?
Bonn uses the time zone Europe/Berlin: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Bonn?
A nonstop flight from London to Bonn takes about 1 h 10 min, for a straight-line distance of about 530 km.
Which school holidays are best for Bonn?
Bonn has its best school-holiday weather during May half-term (score 75) and its weakest during the Christmas holidays (score 8). Holiday ratings (0–100): Easter holidays 49, May half-term 75, Summer holidays 74, October half-term 47, Christmas holidays 8.
Near Bonn
Other destinations close by.
Places with a climate like Bonn
Destinations whose weather through the year is closest to Bonn's – good alternatives.